WM-FX888 SECTION 4 MECHANICAL ADJUSTMENTS
PRECAUTION 1. Clean the following parts with a denatured-alcohol-moistened swab: playback head pinch roller rubber belts capstan 2. Demagnetize the playback head with a head demagnetizer. (Do not bring the head demagnetizer close to the erase head.) 3. Do not use a magnetized screwdriver for the adjustments. 4. The adjustments should be performed with the rated power supply voltage (1.3 V) unless otherwise noted. Torque Measurement
Mode FWD CQ-102C FWD Back Tension Torque Meter Meter Reading (1.47 � 2.94 mN�m) 15 � 25 g�cm (0.22 � 0.36 oz�inch) (0.029 � 0.196 mN�m) 0.3 � 2.0 g�cm (0.004 � 0.01 oz�inch) (1.47 � 2.94 mN�m) 15 � 25 g�cm (0.22 � 0.36 oz�inch) (0.029 � 0.196 mN�m) 0.3 � 2.0 g�cm (0.004 � 0.01 oz�inch) (more than 3.43 mN�m) more than 35 g�cm (more than 0.5 oz�inch) Type WS-48A Signal 3 kHz, 0 dB Used for Tape Speed Adjustment
SECTION 5 ELECTRICAL ADJUSTMENTS
PRECAUTION 1. Specified voltage : 1.3 V (DC) 2. Setting SOUND RV/MB/GRV : OFF AVLS : OFF ;NR : OFF BL SKIP : OFF
TAPE DECK SECTION
Test tape
0 dB=0.775 V
Tape Speed Adjustment Setting: Function: TAPE
Test tape WS-48A (3 kHz, 0 dB) 16 � frequency counter
REV CQ-102RC REV Back Tension FF, REW CQ-201B
set
+ �
i jack (J701)
Procedure: 1. Playback WS-48A (tape center) in the FWD state. 2. Adjsut RV601 so that the frequency counter reading becomes 3,000 Hz. Specification Values: 2,970 to 3,030 Hz 3. Playback WS-48A (tape center) in the REV state. Check that the frequency counter reading is within 2% (approx.60 Hz) of the reading of step 1. Adjustment Location: MAIN BOARD (See page 12)
